Skimming along the Arizona border in the Vermilion Cliffs Wilderness, Buckskin Gulch is considered the longest slot canyon in the Southwest. After entering the intimate narrows of the canyon, the route continues on for about 15 miles until it reaches the Paria River. Along those 15 miles, the walls get as narrow as 10 feet and as tall as 500 feet above the canyon floor. While the route can be done in a day, many visitors take overnight gear and camp near the confluence before hiking out the next morning.
